Chemistry - Metallurgy Question with Solution | TestHub

${\mathrm{CuCO}}_3\cdot \mathrm{Cu}(\mathrm{OH}{)}_2$ is concentrated by froth floatation method using NaCN

Calcination, roasting both are only thermal decomposition process.

In reverberatory furnace when ore is heated with excess ${\mathrm{O}}_2$ is called calcination

In Bayer's process NaOH solution is used as leaching agent